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Implement OSC533 screenshot #1648

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Implement OSC533 screenshot #1648

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3 changes: 3 additions & 0 deletions src/vtbackend/Functions.h
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,7 @@ constexpr inline auto SETICON = FunctionDocumentation { .mnemonic = "SETICON", .
constexpr inline auto SETTITLE = FunctionDocumentation { .mnemonic = "SETTITLE", .comment = "Change Window & Icon Title" };
constexpr inline auto SETWINTITLE = FunctionDocumentation { .mnemonic = "SETWINTITLE", .comment = "Change Window Title" };
constexpr inline auto SETXPROP = FunctionDocumentation { .mnemonic = "SETXPROP", .comment = "Set X11 property" };
constexpr inline auto SCREENSHOT = FunctionDocumentation { .mnemonic = "SCREENSHOT", .comment = "Screenshot of the screen" };

} // namespace documentation

Expand Down Expand Up @@ -621,6 +622,7 @@ constexpr inline auto SETICON = detail::OSC(1, VTExtension::XTerm, doc
constexpr inline auto SETTITLE = detail::OSC(0, VTExtension::XTerm, documentation::SETTITLE);
constexpr inline auto SETWINTITLE = detail::OSC(2, VTExtension::XTerm, documentation::SETWINTITLE);
constexpr inline auto SETXPROP = detail::OSC(3, VTExtension::XTerm, documentation::SETXPROP);
constexpr inline auto SCREENSHOT = detail::OSC(533, VTExtension::Contour, documentation::SCREENSHOT);

constexpr inline auto CaptureBufferCode = 314;

Expand Down Expand Up @@ -754,6 +756,7 @@ constexpr static auto allFunctionsArray() noexcept
SETTITLE,
SETWINTITLE,
SETXPROP,
SCREENSHOT,
SETCOLPAL,
SETCWD,
HYPERLINK,
Expand Down
32 changes: 32 additions & 0 deletions src/vtbackend/Screen.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,8 @@
#include <type_traits>
#include <variant>

#include "vtbackend/primitives.h"

#if defined(_WIN32)
#include <Windows.h>
#endif
Expand Down Expand Up @@ -3703,6 +3705,35 @@ ApplyResult Screen<Cell>::apply(Function const& function, Sequence const& seq)
case SETICON: return ApplyResult::Ok; // NB: Silently ignore!
case SETWINTITLE: _terminal->setWindowTitle(seq.intermediateCharacters()); break;
case SETXPROP: return ApplyResult::Unsupported;
case SCREENSHOT: {
auto coords = seq.intermediateCharacters();
// format: top;left;bottom;right
auto splitted = crispy::split(coords, ';');
auto top = std::stoi(std::string { splitted[0] });
auto left = std::stoi(std::string { splitted[1] });
auto bottom = std::stoi(std::string { splitted[2] });
auto right = std::stoi(std::string { splitted[3] });

// OSC 533 ; top ; left ; lines ; columns ; format ; Pt ST
std::string answer;
auto out = std::back_inserter(answer);
std::format_to(
out, "{};{};{};{};{};Pt", top, left, bottom - top, right - left, "plain text");

for (auto indexRow = top; indexRow <= bottom; ++indexRow)
{
for (auto indexColumn = left; indexColumn <= right; ++indexColumn)
{
auto& cell = at(LineOffset { indexRow }, ColumnOffset { indexColumn });
std::format_to(out, "{}", cell.toUtf8());
}
std::format_to(out, "\n");
}
std::cout << std::format("HERE: {} '{}'\n", answer.size(), answer);
answer = std::format("\033]533;{}",answer);

return ApplyResult::Unsupported;
}
case SETCOLPAL: return impl::SETCOLPAL(seq, *_terminal);
case RCOLPAL: return impl::RCOLPAL(seq, *_terminal);
case SETCWD: return impl::SETCWD(seq, *this);
Expand Down Expand Up @@ -3761,6 +3792,7 @@ unique_ptr<ParserExtension> Screen<Cell>::hookSixel(Sequence const& seq)
case 4:
case 3: return 3;
case 2: return 5;

case 1:
case 0: return 2;
default: return 1;
Expand Down
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